| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [vb infin] at the time | 40 |
|
| 2 | n't [vb infin] at the time | 25 |
|
| 3 | not [vb infin] at the time | 15 |
|
| 4 | [not/n't] know at the time | 14 |
|
| 5 | [not/n't] realise at the time | 7 |
|
